Grinding or crushing mill.



GRINDINGy 0R 'CRUSHING MILL.

`APPLICATION IILED JANf, 1906.

.PATENTED NOV'f, 1906.

. UNITED STATES PATENT OFFICE.

Specification of Letters Patent. j

GRINDING OR CRUSHING MILL.l

Application filed January 25, 1906. Serial No. 297.877.

To all whom it may concern:

lBe it known that I, GoTTLIEB WEISS, a subject of the German Emperor, and a resident of Schonnebeck, Essen district, Germany, have invented new and useful Improvements in Grinding or Crushing Mills, of which the following isa specification.

This invention relates to a grinding or crushing mill which is distinct from hithertoknown mills ir that the runner, which is made of cast-steel, as Well as the base-plate of the charging-funnel, are arranged adjustably, while runner and bucket are conically sha ed, so that in order to adjust the runnerfon y a slight turning of the bottom bearing is necessary, whereby the space between runner and bucket can be enlarged or lessened, respectively.

The accompanying drawing,l which is a longitudinal central section through the mill shows how this is accomplished.

The runner b, which is made of cast-steel and irmly keyed on the axle a, rests by means of the latter in the screw-threaded bottom bearing c, so that by sim ly turning the latter in its corres ondingy screwthreaded socket the runner can be adjusted in its vertical direction. Instead of the screw-threaded bottom bearing c any other allow` of the base-plate d being adjusted, the

same is freely suspended from screw-bolts f, which are fixed, by means of their nuts h, to

the frame 11, carrying the top bearing of the axle a. By screwing these nuts h to the right or left the base-plate d can be lowered or lifted, according to the lower or higher adjustment of the runner, respectively.

The mill may be used for any purpose, but

'is particularly `applicable to use for crushing ore or the like.

Having full described my invention, what I claim, and esire to secure by Letters Patent, is-

A grinding or crushing mill, comprising an axle a, a top bearing` and an adjustable Patented- Nov. 6, 1906.

screw-threaded bottom bearing c for supporting said axle, a conical bucket g provided with projections e, a conical runner b made of cast-steel and disposed in said bucket and firmly keyed on said axle and adapted to be vertically adjusted on the bottom bearing c bein turned, a frame xed to said bucket an adapted to support said top bearing of said axle, screw-bolts f assed through said frame i, and a char Ing-funnel with base-plate d provided wit grooves into which catch said projections e of said bucket thus preventing the base-plate from turning and freely suspended from said screw-bolts f and thus ada ted to be verticallyadjusted by turning t e nuts 71/ of said screw-bolts, substantially as described and shown and for the purpose set forth.

. In testimony whereof I have hereunto set my hand in the presence of two subscribing witnesses.

j GoTTLIEE WEISS. Witnesses I PETER LIEBER, WILLIAM ESSENWEIN. 

